Message in rest room says, 'I have a gun'

Ambridge Area High School was put on lockdown Wednesday after the message "I have a gun" was found written on a rest room wall.

Students told Pittsburgh's Action News 4 reporter Sheldon Ingram the locked down went into effect during fifth period. Five police departments, consisting of more than two dozen officers and 15 K-9 officers, were called to the school.

Police went from room to room searching for a weapon and to otherwise ensure that students were safe. During the search, a chef's knife was found in a 15-year-old student's backpack, Ambridge Police Chief James Mann said.

The knife was not believed to be related to the initial message that prompted the lockdown. The student was taken to a detention facility in New Castle and is facing charges.

On April 9, a student at another Pittsburgh-area school, Franklin Regional High School in Murrysville, was charged with attempted homicide and aggravated assault after he allegedly used two kitchen knives from his home to stab 20 students and a security guard.

3 A knife in a school. 3 And we're not talking about Franklin Regional! It happened again today - and it was just luck that police found the seven-inch blade!! Good Evening. I'm Wendy Bell. AND I'M ANDREW STOCKEY. THE SCARE AT AMBRIDGE HIGH SCHOOL STARTED WITH AN UNRELATED THREAT!! THAT'S WHEN POLICE FOUND THE KITCHEN KNIFE IN A STUDENT'S BACKPACK!! PITTSBURGH'S ACTION NEWS 4 REPORTER SHELDON INGRAM IS LIVE WITH REACTION FROM BOTH STUDENTS AND PARENTS!! 3 3 3 3 UPON LOCKDOWN - - ONE OF THE TEACHERS TOLD ME I COULDN'T GO KM THE SCHOOL. I ASKED HER WHY AND SHE SAID IT WAS A COLD YELLOW OF I HEARD IT WAYS GUN BUT THEN PEOPLE SAID, I HAVE A GUN. Reporter: PARENTS TELL PITTSBURGH'S "ACTION NEWS 4" THEY HAD ONLY ONE REACTION WHEN NOTIFIED BY SCHOOL ADMINISTRATORS. I WAS SCARED TO DEATH. I DON'T KNOW WHAT TO THINK. Reporter: WHAT WAS YOUR REACTION WHEN YOU HEARD THAT? I'M SCARED. Reporter: 25 POLICE AND K-9 OFFICERS FROM 5 BOROUGHS STORMED THE XROOL AND SEARCHED EVERY BAG FOR A GUN. NO GUN WAS FOUND. HOWEVER, THEY DID FIND THIS LARGE KITCHEN KNIFE IN THE BACKPACK OF A 15-YEAR-OLD STUDENT. WHILE WE WERE SEARCHING THE BAC BACKPACK, ONE OF THE POLICE OFFICERS FOUND ABOUT A 13-INCH CHEF'S KNIFE IN A BACKPACK. THEY TOLD ME FIRST THERE WAS NO GUN THAT WAS FOUND. I WAS RELIEVED. THEY TOLD ME NO DRUGS WERE FOUND. I WAS RELIEVED. THEN THEY TOLD ME THERE WAS A KNIFE FOUND. MAIND HEART SANK. YOU'RE GOING TO FEEL THE FULL WRATH OF OUR JUDICIAL SYSTEM IN BEAVER COUNTY BECAUSE THAT IS UNACCEPTABLE TO BRING A KNIFE OF THAT SIZE OR ANY KNIFE INTO THE SCHOOL. IT WAS IN HIS BACKPACK. Reporter: POLICE SAY THEY DON'T BELIEVE THE STUDENT KAERG THE KNIFE IS RESPONSIBLE FOR THE MESSAGE WRITTEN ON THE RESTROOM WALL. THE GUN MESSAGE IS DISMISSED AS A PRANK BUT NOT THE DISCOVERY OF A 13 INCH KNIFE IN A STUDENT'S BACKPACK. IS THERE A CHANCE A SCHOOL COULDING EXPELLED FROM THE SCHOOL DISTRICT? OH, YES ABSOLUTELY. Reporter: THAT STUDENT WAS CHARGED WITH CARRYING A WEAPON ON SCHOOL STUDENT R GROUNDS E.'S